Some more biggies (if you have all the expansions, some are true even if you don't):
In game MAPS (For those of us hopelessly lost)
Pets zone with you and don't die when you zone.
Mounts, horses and drogs for mana regen standing, as if you were sitting, also eliminates sitting agro, only able to use outdoors.
No corpse runs, you can summon corpse to guild lobby for a small fee.
Even if you fail to recover your copse, it goes to a shadowland, so you never have to lose all your equipment.
Shared bank spaces to pass items amoung your toons.
A bigger better bazaar, you can be a buyer or seller.
Tradeskills, you can take many to 300 without an AA.
All toons can get Plane of Knowledge, even without the expansion. It is a place you can buy spells, find transporter stones, get buffs, do your banking, no fighting. The merchant or quest giver you want won't have been killed.
A find feature in many zones, that creates a golden pathway to the NPC or PC you seek.
A fantastic tutorial feature.
Lots more I'm sure, but I can't be sure of timing.
MAPS MAPS did I say maps?
/edits for spelling and adding that there are maps.
Edited, Tue Aug 23 21:31:53 2005 by Kelti
Edited, Tue Aug 23 21:39:09 2005 by Kelti